caffè latte vs espresso

caffè latte

noun
  • Espresso coffee with steamed milk. 

espresso

noun
  • A drink that includes espresso as an ingredient. 

  • A concentrated coffee beverage brewed by forcing hot water under high pressure through finely ground coffee. 

How often have the words caffè latte and espresso occurred in a corpus of books? (source: Google Ngram Viewer )